Fault in voltage supply

The vehicle voltage is checked by means of the diagnosis function J.

This function indicates the supply voltage of the vehicle measured by the transmission control unit. In drive mode, i.e. with the forward or reverse gear engaged, the lower voltage limited is checked continuously.

If the value drops permanently below 18.5 V, an entry in the fault memory is made and the minimum voltage value is displayed. Make sure that the voltage is not below 18.5 V.